{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["protein", "DNA", "cell type", "cell line"], "input": "In this group, however, receptor levels and morning plasma cortisol values showed a negative correlation, indicating a subtle down-regulatory effect."}
{"protein": [], "DNA": [], "cell type": [], "cell line": []}